PowerCenterª Pro PowerCenter Pro Minitower 180/210 Table of Contents PowerCenterª Pro NT Specifications Specifications for the PowerCenter Pro NT 180/210...............................................................................Page 2 MLB Diagram ................................................................................................................................................Page 5 CUDA Reset For Your Safety .................................................................................
CPU PowerPC 604e at 180MHz or 210MHz Main Logic Board Catalyst (Comparable to a Macintosh 7200) CPU Upgrade Available via daughtercard replacement MacOS 7.5.3, 7.5.5, 7.6, 7.6.
For Your Safety To ensure your personal safety as well as prevent unnecessary damage to the computer, please follow all safety precautions when performing any service on Power Computing computers. Note: Always make sure that the computer is powered down before attempting any service. To make sure that the computer is completely powered down, check the light behind the power button on the front bezel and make sure that it is off.
The CUDA Reset button is a small red button located on the Main Logic Board. Depressing this button resets the CUDA Microcontroller Chip.
MLB DIAGRAM MLB MLB Diagram 5 CONFIDENTIAL
Removing the Chassis Cover 1. Shut down the computer and turn off all external devices. If you do not have a grounding strap, leave the computer plugged into the wall socket. Leaving the computer plugged in ensures a positive ground. Disconnect everything but the power cord. 2. Remove the four thumb screws from the rear of the computer. 3. Push the cover back and away from the machine chassis. Lift the cover up and remove from the chassis.
Removing the Front Bezel Cover 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 1. Remove the main logic board protector plate on the closed side of the chassis by removing the four securing screws and placing the plate aside (refer to Figure 2: Removing protective plate on page 7). Front Bezel Front Bezel Removal/Installation 2. Remove the six screws that secure the bezel to the front of the computer (see Figure 3: Removing retaining screws on page 8).
retaiing screws Figure 3: Removing retaining screws Installing the Front Bezel 1. Connect the switch and speaker wires to their respective ports on the main logic board. 2. Screw the bezel to the chassis front with the six retaining screws. 3. Replace the MLB protection plate on the closed side of the chassis. 4. Replace the chassis cover (refer to Chassis Cover Removal/Installation on page 6).
RAM RAM Removal/Installation Note: All DIMMs must be 168-pin, fast-paged mode, 60-nanosecond RAM access time or faster. The PowerCenter has four DIMM slots near the front on the motherboard. DIMMs may be installed in any slot. Removing RAM 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 2. Place the unit on its side with the MLB on the bottom and the open side facing up. 3. Locate the DIMM(s) you would like to remove (see Figure 3: on page 9).
CPU in the slot. Slide the contacts straight into the slot and make sure the contacts are firmly seated. (see Figure 5: Installing RAM on page 10). When properly seated, the contacts on the bottom should not be visible. Figure 5: Installing RAM Note: DonÕt force the DIMM module into the slot; if the MLB starts bending significantly, pull the DIMM out, reposition it, and try again. If the DIMM module is seated correctly, the lever at the end of the DIMM slot should be completely raised. 3.
CPU CPU Removal/Installation Removing the CPU 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 2. Place the unit on its side with the MLB on the bottom and the open side facing up. 3. Disconnect the CPU fan from the connector on the main logic board. 4. Remove the fan assembly by sliding the entire assembly forward until it unlocks from the support beam. Lift the assembly out of the machine and set it aside. Note: The riser arm may be removed if necessary. 5.
2. Lower the CPU card squarely into the slot so that the notch in the CPU card lines up with the notch in the slot. Slide the contacts straight into the slot and make sure the contacts are firmly seated. (see Figure 9: CPU removal on page 11). When properly seated, the contacts on the bottom should not be visible. Note: DonÕt force the CPU card into the slot; if the MLB starts bending significantly, pull the CPU card out, reposition it, and try again. 3.
Removing the Cache Cache Cache Removal/Installation 1. Remove the chassis cover. (refer to Chassis Cover Removal/Installation on page 6). 2. Place the unit on its side with the MLB on the bottom and the open side facing up. 3. Locate the cache card (refer to MLB Diagram on page 5). Note: The level 2 cache is located between the CPU riser card and the front drive bay assembly.
Note: Before you install any expansion cards, be sure that the combined power consumption of the expansion cards does not exceed the limits of the computer. Refer to the documentation that came with the cards you are installing for their power consumption rating and to ÒPower requirementsÓ in the UserÕs Guide for the power consumption limit for this computer. Removing PCI Cards 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 2.
PCI slot Figure 10: Removing PCI slot cover Slot cover screw PCI slot cover 4. Hold the PCI card (contacts facing down) with one hand at each end. Notice that there is a notch in the contact edge of the PCI card. 5. Lower the PCI card squarely into the PCI riser card so that the notch in the PCI card lines up with the notch in the PCI riser card. Slide the contacts straight into the PCI riser card and make sure the contacts are firmly seated. (see Figure 11: PCI card installation on page 15).
Removing the PCI Riser Card 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 2. Locate the riser card (refer to MLB Diagram on page 5). 3. Remove any installed PCI cards (refer to PCI Cards Removal/Installation on page 14). 4. Remove the two screws that secure the riser card to the crossbar. 5. Disconnect the power cable to the CPU cooling fan. Figure 11: PCI Riser Card removal 6. Remove the hex-head screw that secures the support beam to the rear of the chassis.
Installing the PCI Riser Card 1. Lower the PCI riser card squarely into the PCI slot so that the notch in the PCI card lines up with the notch in the PCI slot. Slide the contacts straight into the PCI slot and make sure the contacts are firmly seated. When properly seated, the contacts on the bottom should not be visible. 2. Replace the support cross beam and its retaining screw. 3. Replace the screws that attach the PCI riser card to the support beam. 4. Reconnect the power cable of the CPU cooling fan.
Adaptec SCSI Card Removal/Installation Removing the Adaptec SCSI Card 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 2. Disconnect any cables that may be attached to the Adaptec SCSI card. 3. Remove the screw attaching the Adaptec SCSI card to the inside of the chassis. 4. Firmly grasp the Adaptec SCSI card and pull it straight out of the computer laterally. Be careful not to damage any components that may be protruding through the I/O slot.
PCI slot Figure 12: Removing PCI slot cover Slot cover screw PCI slot cover 4. Hold the Adaptec SCSI card (contacts facing down) with one hand at each end. Notice that there is a notch in the contact edge of the PCI card. 5. Lower the Adaptec SCSI card squarely into the PCI riser card so that the notch in the PCI card lines up with the notch in the PCI riser card. Slide the contacts straight into the PCI riser card and make sure the contacts are firmly seated.
7. Reset the CUDA (refer to CUDA Reset on page 4). 8. Replace the chassis cover (refer to Chassis Cover Removal/Installation on page 6). Routing the Ultra SCSI Cable 1. Use the fold in the cable to identify the end that attaches to the Adaptec SCSI card. The connector closest to the fold attaches to the PCI card. The other connector attaches to the card. 2. The Adaptec SCSI card should be in the second or middle slot. 3. Use the 50-pin connector to attach the cable to the Adaptec SCSI card. 4.
Floppy Disk Drive Removal/Installation Removing the Floppy Disk Drive 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 2. Disconnect the cable connected to the floppy disk drive. 3. Remove the two screws that secure the floppy disk drive cage to the 5.25-inch drive cage above it and the front of the chassis. 4. Slide the floppy disk drive cage toward the rear of the computer to unhook it from the 5.25-inch drive cage.
5. Reconnect the cable to the floppy disk drive. 6. Reset the CUDA (refer to CUDA Reset on page 4). 7. Install the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 22 CONFIDENTIAL Main Logic Board 4. Replace the screws that attach the floppy disk drive cage to the5.25-inch drive cage and the front of the chassis.
3.5-inch Drive Removal/Installation Removing the 3.5-inch Drive 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 2. Remove all cables from the drive. 3. Remove the four retaining screws securing the drive to the mounting bracket. 4. Lower the drive out of the bracket straight down and out of the bracket. 3.5-inch internal drive bay Figure 11: Removing a 3.5-inch Installing the 3.5-inch Drive 1. Place the drive in the mounting bracket. 2.
Removing 5.25-inch Drives 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 2. Disconnect all cables that are attached to the device being removed (see Figure 12: CDROM Removal on page 24). Figure 12: CDROM Removal Power Connector Sound Connector SCSI Connector 3. Remove the four screws securing the drive to the drive cage. 4. Slide the drive forward out of the chassis. Installing 5.25-inch Drives 1.
Faceplate Figure 13: Faceplate removal CDROM Figure 14: 5.25 Drive removal 3. Replace the screws that secure the drive. 4. Reset the CUDA (refer to CUDA Reset on page 4). 5. Install the chassis cover (refer to Chassis Cover Removal/Installation on page 6).
Removal/Installation of MLB Removing the MLB (Main Logic Board) 1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6). 2. Place the computer on its side with the MLB on the bottom and the open side facing up. 3. Remove the base from the chassis. The base is retained with two screws on the back in the bottom center of the computer and one directly on the bottom of the computer. Slide the base toward the rear of the computer to remove it. 4.
Installing the MLB 1. Lower the MLB into the chassis at an angle. Lay the board flat and align the mounting holes with the posts. 2. Replace the eight screws that secure the MLB to the chassis. 3. Reconnect the cables attached to the MLB. Connect the power cable by pressing the retaining clip facing the front of the computer, then pressing down. Connect all remaining cables to their connectors.
Removal/Installation Removal/Installation of of Power Power Supply Supply Removing the Power Supply 1. Remove the chassis cover. (refer to Chassis Cover Removal/Installation on page 6). 2. Disconnect the logic board power connector from the MLB. The connectors will have red, white, blue, and black wires coming out of them that lead back to the power supply (refer to MLB Diagram on page 5). Disconnect the power cable by pressing in on the retaining clip and pulling straight up. 3.
Installing Power Supply 1. Slide the power supply into place, making sure that it is seated properly. 2. Secure the power supply with the four retaining screws on the back of the chassis. ¥ the first screw is located above and to the left on the chassis ¥ the second screw is located below and to the left on the chassis ¥ the third screw is located above and to the right on the chassis ¥ the fourth screw is located below and right on the chassis 3. Connect the power connectors to all internal SCSI devices.
This module was written and designed by: Michael Scott Clay. Additional contributions by: Shane Nestle Jeff Pryor Edited by Mark Wood Laurie Veatch This Power Computing module was written, edited and produced on a desktop publishing system using Power Computing system that use the Mac OS. Every effort has been made to ensure that the informationin the module is accurate. Power Computing is not responsible for printing or clerical errors.
